Refund from Builder -Randheja Gandhinagar Gujarat- 12-09-2022

Dear Sirs, In pre-launch stage I had booked a Plot in Randheja Gandhinagar (Dist-Gandhinagar Gujrat)in March-2022. Plot size is of 213.26 sq yd super buildup. Scheme name was Nityam. Total cost of my Plot is 63.00 L. As initial payment I paid to builder 30.00 Lakhs by cash (I withdraw that money from my bank accounts) for getting less rate in one month in three parts ( 5lac + 15lac + 10lac). Accordingly builder given me payment receipts against cash ( I have cash receipt with revenue stamp). I have booking form, in which mentioned information about plot. After 3 months passed, he informed me that he is now going to cancel his plot scheme and want to start Flat scheme on that place ( Perhaps to get more profit) So, I meet him personally and ask him to give my money back with interest because plot cancellation is from his side grudgingly. He was ready and mentioned to give my money back with interest and he ask me one month to repay and I allow him to do so. However now it has been close to 2 months (Promise was of 1 month) and he is giving me only 10% of my money and has still not returned remaining 90% money. I have been following up with him and every time he gives me some silly reason & postponing payments. I think he is not willing to give my money back. So please tell me, Can I take the legal way of getting the money back? What are the chances that I will get my money back?